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Subject:	Re: info requested
From:	Tom Waznis <[log in to unmask]>
Reply To:	TechNet E-Mail Forum.
Date:	Wed, 5 Mar 2003 09:03:37 -0800
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Minimum copper thickness in the hole is about it. I would want a little more than IPC class 2 if the board is thicker than 0.075".

-----Original Message-----
From: Genny Gibbard [mailto:[log in to unmask]]
Sent: Wednesday, March 05, 2003 8:42 AM
To: [log in to unmask]
Subject: [TN] info requested


We have an 8 layer board that we need to turn into a 10 layer board.  We have adjusted our layer stackup to accommodate the extra layers without any significant change in overall thickness, but we are still having trouble fitting everything we need onto the layout.  
What are the implications of going from a minimum .012" via to a 0.010" via?  What do we need to take into consideration?  What things might be critical to spec to the board fab house?

Genny Gibbard ( mailto:[log in to unmask])


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